I am having the exact same problem as this issue- "Missing required argument $options" After migration from magento 126.96.36.199 to 2.1.3
The solution talks about modifying this file- var/www/html/vendor/magento/module-customer/Model/Config.php
That file is not there for me. I have looked and looked but can not find that file to try that solution. Does anyone know a workaround? or the location of that file? Did it move from 2.1.3 to 2.1.6?